Sound-box for talking-machines.



T. KRABMER.

SOUND BOX FOB TALKING MAOHINES. APPLIOATIOR FILED AUG. 5, 1907.

912,857. Patented Feb. 16, 1909.

UNITED STATES Parana oFFIon.

THOMAS KRAEMER, OI PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 HAWTHORNE dz SHEBLE MANUFACTURING COMPANY, 01 PHILADELPHIA, PENNSYLVANIA, A OORPORA TION OF PENNSYLVANIA,

Specification oi Letters Patent.

Patented-Feb. 16, 1909.

Application filed August 5, 1907. Serial No. 387,193.

T 0 all whom it may concern:

Be it known that I, THOMAS KRAEMER a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented cerit can be used in connection with records either of the lateral-wave or hill-and-valley type. This object I attain in the manner hereinafter set forth, reference bein had to the accompanying drawing, in whic 1,

Figure 1 is a front elevation of a talking machine sound box and part of the hollow arm carrying the same, the sound box being adjusted for use in connection with a record of the lateral-wave ty e Fig. 2 is a view, partly in elevation and vertical section, on the line aa, F ig. l Fig. 3 is a view similar to Fig. 1, but showing the sound box adjusted for usein connection with a record of the hill-and-valley type, and Fig. 4 is a view, partly in elevation and partly in transverse section, on the line b-b, Fig. 3.

1 re resents the casing .of the sound box and 2 t e diaphragm, which may be sup orted therein in any desired way, the stylus ever 3 bearing upon said diaphragm and being pivotally mounted upon the sound box casing so as to vibrate in a plane at a right angle to the plane of the diap 1ragm,'constant contact of the inner end of the stylus lever with the diaphragm being maintained by seou'ringthese' parts directly to ether.

One feature 0 my present inventionconsists in providing the stylus lever with two Styluses 4 and 5, the stylus 4 projecting from the end of. the lever so as to engage with a record having grooves of the lateral-wave type, as shown in Fig. 1, and the stylus 5 prothe stylus lever in its ectin'g from the back of the lever so as to engagewith records having grooves of the hilland-valley ty e, as shown in Fig. 3, whereby either type 0 record will causevibration of proper plane ofmovement.

The stylus 4 may consist of the ordinary steel needle used in connection with the hard composition records usually employed in disk record talking machines, but as the stylus 5 may sometimes, if not usuall be employed in connection with cylindrica wax partly in transverse records it is preferably composed of the conventional sapphire point commonly used in machines of that type, wherein the operating end is blunt or rounded.

The hollow arm of the talking machine is represented at 6, and in order to permit of the ready ap lication of the sound box to said arm so tiat either stylus may be used, the tube 7 projecting from the back of the sound box is bent into elbow form, as shown in Fig. 3, one end portion of said tube engaging the end of the arm 6 and being adjustab e to different positions therein, in order to permit the sound box to assume either the rela tion to the arm 6 shown in Figs. 1 and 2, for the use of the stylus 4, or the relation shown in Figs. 3 and 4, for the use of the stylus 5.

Preferably the elbow tube 7 of the sound box is of circular cross section, and that or tion of the same which engages the end 0 the arm 6 has formed in it two slots 9 and 10 for the reception of a pin 11 carried by the arm 6, the slots being so dis osed that when said pin engages the slot 9 t e sound box will 00- cupy the position shown in Figs. 1 and 2, and when it engages the slot 10 the sound box will orcu y the position shown in Figs. 3 and 4, and wi [be locked in either position of adjustment. p

In order to insure at all times a snug fit of the elbow pipe to the arm 6 the tubular end portion of said arm, which receives the end of the elbow pipe, is preferably split and provided with flanges l2 and 13, which are connected by a set screw 14, as shown in Figs. 3

and 4, whereby said split portion of the arm 6 can be caused to press upon the end of the elbow pipe 7 of the sound box with any desired degree of force.

I claim 1. A talking machine sound box having a diaphra m, and a pivoted stylus lever bearing on the diaphragm on one side of the fulerum, and provided on the opposite side of said fulcrum with one stylus constructed for engagement with a record of the lateral-wave type and another stylus constructed for engaging a record of the hill-and-valley type, saitrll latter stylus having a rounded operating en 2. A talking machine sound box having a diaphrar m, and a pivoted stylus lever. bearing on the diaphra m on one side of the fu crum and provided on the opposite side said fulcrum with two-Styluses, one projecting in a plane lparallel with the dia hra m and constructe( for engaging a recon oi the lateral-wave type and the other projecting in a plane at a right angle to said aphragm and constructed for engaging a record of the hill-and-valley type, said latter stylus having a rounded operating end.

3. A talking machine sound box having a diaphra m, and a pivoted stylus lever hearing on t e diaphragm on one side of the fulcrum and provided on the opposite side of said fulcrum with one stylus projecting from the end of the stylus lever and constructed for enga ing a record of the lateral-wave type, and another stylus projecting from the back of the lever and constructed for engaging a record of the hill-and-valley type, said latter stylus having a rounded operating end.

4. The combination of the hollow soundboxcarrying arm of a talking machine, with a sound box having a stylus lever provided with a plurality of styluses disposed at different angles, one constructed for engagement with a record of the lateral-wave type,- and the other constructed for en agement with a record of the hill-and-valley type, said latter stylus having a rounded operating end, and means for adjustably mounting the carrying arm, and means for securin elbow tube to the carrying arm 1n dii erent sound box on its carrying arm to accord with the different positions m which the stylus lever must be used.

5. The combination of the hollow soundbox-carrying arm of a talking machine with a sound of use in different )ositions, an elbow tube whereby said soun box is connected to its said positions of adjustment.

6. The combination of the sound-box-carryinglarm of a talkin machine with a sound box aving a stylus ever susceptible of use in different positions, and an elbow tubehaving a pair of slots, each adapted for the re-.

ception of a projection on the carrying arm. 7. The combination of a talking machine sound box having a stylus yer susceptible ox having a stylus lever susceptible ofv use in different positions, a tube onsaid sound box, and a carrying arm having a clamping portion for en aging said tube.

In testimony whereo l have signed my name to this specification, in the presence of two subscribing witnesses.

THOMAS KRAEMER.

Witnesses:

HAMILTON D. TURNER, KATE A. -BEADLE. 

